network6 - Chapter_06_Wireless_Networking Question 1 1 1 point All wireless signals are carried through the air by electromagnetic waves Question

network6 - Chapter_06_Wireless_Networking Question 1 1 1...

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Unformatted text preview: Chapter_06_Wireless_Networking Question 1 1 / 1 point All wireless signals are carried through the air by electromagnetic waves. Question options: 1 0 Question 2 1 / 1 point Unlike wired signals, wireless signals originate from electrical current traveling along a capacitor. Question options: 1 0 Question 3 1 / 1 point Multipath signaling is a significant cause of fading. Question options: 1 0 Question 4 1 / 1 point NFC tags are very expensive and cannot be purchased blank, requiring them to be pre-loaded. Question options: 1 0 Question 5 1 / 1 point The WPS PIN is vulnerable to brute force attacks. Question options: 1 0 Question 6 1 / 1 point The wireless spectrum, as defined by the FCC, spans frequencies between which two options below? Question options: 2 KHz 9 KHz 300 GHz 500 GHz Question 7 1 / 1 point What two frequencies below are used for most wireless networks? Question options: 900 MHz 2.4 GHz 4.9 GHz 5 GHz Question 8 1 / 1 point At what two layers do wireless LANs operate at? Question options: Layer 1 Layer 2 Layer 3 Layer 4 Question 9 1 / 1 point What two options below are two different types of attacks against Bluetooth connections that can be used to send unsolicited data, or download data without permission? Question options: bluesniffing bluejacking bluespoofing bluesnarfing Question 10 1 / 1 point What two terms below describe a wireless network topology in which access points work as peer devices on the same network? Question options: mesh WLAN infrastructure WLAN wireless gateway wireless mesh network (WMN) Question 11 1 / 1 point What signal propagation phenomena causes a wireless signal to split into secondary waves when it encounters an obstruction? Question options: reflection bounce diffraction scattering Question 12 1 / 1 point What signal propagation phenomena causes the diffusion, or the reflection in multiple different directions, of a signal? Question options: reflection bounce diffraction scattering Question 13 1 / 1 point Which command below can be used on Linux to modify the SSID of the access point you choose to associate with? Question options: ifconfig iwconfig wlanconfig ipconfig Question 14 1 / 1 point How many address fields exist in an 802.11 frame? Question options: 2 3 4 6 Question 15 1 / 1 point Select below the band that is not one of the four frequency bands used in the 5 GHz range for wireless LANs: Question options: 5.1 GHz 5.3 GHz 5.4 GHz 5.9 GHz Question 16 1 / 1 point Select below the network topology that is not a valid wireless network topology: Question options: bus infrastructure mesh ad hoc Question 17 1 / 1 point Ideally, stations must remain within what range of an access point in order to maintain optimal transmission speeds? Question options: 100 feet 200 feet 300 feet 600 feet Question 18 1 / 1 point At what layer of the OSI model do the 802.11 standards vary? Question options: Physical layer Network layer Data link layer Transport layer Question 19 1 / 1 point Which 802.11 standard was the first to utilize the 5 GHz band? Question options: 802.11b 802.11a 802.11g 802.11n Question 20 1 / 1 point Which 802.11 technology is the first Wi-Fi standard to approach gigabit Ethernet capabilities, and operates on the 5 GHz band? Question options: 802.11a 802.11b 802.11n 802.11ac Question 21 1 / 1 point What is the maximum theoretical throughput of 802.11n? Question options: 54 Mbps 65 Mbps 600 Mbps 1.3 Gbps Question 22 1 / 1 point Select below the name for the special signal that contains information that a wireless node requires in order to associate itself with an access point: Question options: broadcast frame hello packet beacon frame announcement message Question 23 1 / 1 point In IEEE terminology, a group of stations that share an access point are said to be part of what option below? Question options: extended service set basic service set modified service set generic service set Question 24 1 / 1 point What 802.11 frame type is involved in association and reassociation, including probe and beacon frames? Question options: management frames control frames data frames extended frames Question 25 1 / 1 point Which 802.11 frame type is related to medium access and data delivery, and includes ACK and RTS/CTS frames? Question options: management frames control frames data frames extended frames Question 26 1 / 1 point How does the 802.11 data frame indicate how a large packet should be fragmented? Question options: It uses the preamble header The frame check sequence dictates packet size The sequence control field indicates how packets will be subdivided The duration field determines how long the station can transmit a packet, which then determines how it is divided. Question 27 1 / 1 point Which 802.11 wireless innovation allows for the use of multiple antennas on an access point that can issue a signal to one or more receivers? Question options: MIMO channel bonding frame aggregation radio duplexing Question 28 1 / 1 point In an 802.11 data frame, what is the size of the frame check sequence field? Question options: 2 bytes 4 bytes 6 bytes 8 bytes Question 29 1 / 1 point How many data streams are used in 802.11ac Wave 2 devices? Question options: 2 data streams 3 data streams 4 data streams 8 data streams Question 30 1 / 1 point What is the max theoretical throughput of the 802.11ac wireless technology when using Wave 1 devices? Question options: 600 Mbps 1.3 Gbps 3.47 Gbps 6.93 Gbps Question 31 1 / 1 point _________________ is an outdated wireless technology that has been mostly replaced by Bluetooth to connect personal devices. Question options: Bluetooth Micro Wave Infrared (IR) Blue Ray Question 32 1 / 1 point The proportion of noise to the strength of a signal is called the _________________. Question options: signal streng signal-to-no noise-to-sig Question 33 1 / 1 point Access points that include routing functions are also called _______________. Question options: Linksys rout wireless rou Cisco router wired router Question 34 1 / 1 point __________________ is a form of radio communication that transfers data wirelessly over very short distances (usually 10 cm or less). Question options: AM FM Short Wave NFC (near fi Question 35 1 / 1 point All 802.11 standards use ______________ signaling, meaning a wireless station can only transmit or receive, but cannot do both simultaneously. Question options: half-duplex simplex full-duplex ¾ duplex Question 36 5 / 5 points Match each correct item with the statement below. A method used by wireless stationsactive scanning presence of an access point. Using this method, the station issues a probe to each __1__ 1 to detect the The act of driving around an area while running a laptop configured to detect and capture wireless data transmissions. __9__ 2 bluesnarfing In the context of wireless signal propagation, the phenomenon that occurs when an electromagnetic wave encounters an obstructio __4__ 3 data frame The throughput experienced at the application level, such as the quality of a video feed or the speed of a Web page loading in the browser. __5__ 4 diffraction A type of antenna that issues and receives goodput signals with equal strength and clarity in all directions. This type of antenna is used wh __6__ 5 wireless An 802.11 frame type that is responsible for carrying data between stations. Two other frame types include management frames, which are i __3__ 6 omnidirectional antenna An attack in which a Bluetooth connection7is used to download data from a device without the owner’s permission. __2__ unidirectional antenna The use of chalk to draw symbols on a sidewalk or wall within range of an access point. The symbols, patterned after marks that hobos devis __8__ 8 war chalking A security exploit in which a WPS PIN is discovered by means of a brute force attack, giving the attacker access to the network’s WP __10__ 9 war driving A type of antenna that issues wireless signals along a single direction, or path. Also called a directional antenna. __7__ 10 WPS attack Question 37 5 / 5 points Match each correct item with the statement below. __10__ a node is not visible to other nodes on the other side of a wireless coverage area 1 unidirectiona __6__ nodes or stations transmit directly to each other via wireless NICs without an intervening connectivity device 2 omnidirection __5__ electromagnetic energy being scattered, TV and radiodiffracted cellular tower 3 reflected, or stations, __8__ accepts wireless signals from multiple 4 satellite down nodes and retransmits them to the rest of the network __7__ depends on an __2__ issues and receives wireless signals with ad hocstrength and clarity in all directions 6 equal wirele __9__ APs work as peer devices on the same 7 infrastructur network __4__ directional an 8 wireless acce __3__ omnidirection 9 wireless mes __1__ directional antenna, issues wireless signals alongnode direction 10 hidden a single 5 fading Question 31 (1 point) _________________ is an outdated wireless technology that has been mostly replaced by Bluetooth to connect personal devices. Question 31 options: Bluetooth Micro Wave Infrared (IR) Blue Ray Save Question 32 (1 point) The proportion of noise to the strength of a signal is called the _________________. Question 32 options: signal streng signal-to-no noise-to-sig Save Question 33 (1 point) Access points that include routing functions are also called _______________. Question 33 options: Linksys rout wireless rou Cisco router wired router Save Question 34 (1 point) __________________ is a form of radio communication that transfers data wirelessly over very short distances (usually 10 cm or less). Question 34 options: AM FM Short Wave NFC (near fi Save Question 35 (1 point) All 802.11 standards use ______________ signaling, meaning a wireless station can only transmit or receive, but cannot do both simultaneously. Question 35 options: half-duplex simplex full-duplex ¾ duplex Save Question 36 (5 points) Match each correct item with the statement below. Question 36 options: 1.23E+010 A method used by wireless stationsactive scanning presence of an access point. Using this method, the station issues a probe to each 1 to detect the 1.23E+010 The act of driving around an area while running a laptop configured to detect and capture wireless data transmissions. 2 bluesnarfing 1.23E+010 In the context of wireless signal propagation, the phenomenon that occurs when an electromagnetic wave encounters an obstructio 3 data frame 1.23E+010 The throughput experienced at the application level, such as the quality of a video feed or the speed of a Web page loading in the browser. 4 diffraction A type of antenna that issues and receives goodput signals with equal strength and clarity in all directions. This type of antenna is used wh 1.23E+010 5 wireless 1.23E+010 An 802.11 frame type that is responsible for carrying data between stations. Two other frame types include management frames, which are i 6 omnidirectional antenna 1.23E+010 An attack in which a Bluetooth connection7is used to download data from a device without the owner’s permission. unidirectional antenna 1.23E+010 The use of chalk to draw symbols on a sidewalk or wall within range of an access point. The symbols, patterned after marks that hobos devis 8 war chalking 1.23E+010 A security exploit in which a WPS PIN isdriving 9 war discovered by means of a brute force attack, giving the attacker access to the network’s WP 1.23E+010 A type of antenna that issues wireless signals along a single direction, or path. Also called a directional antenna. 10 WPS attack Save Question 37 (5 points) Match each correct item with the statement below. Question 37 options: 1.23E+010 a node is not visible to other nodes on the other side of a wireless coverage area 1 unidirectiona 1.23E+010 nodes or stations transmit directly to each other via wireless NICs without an intervening connectivity device 2 omnidirection 1.23E+010 electromagnetic energy being scattered, TV and radiodiffracted cellular tower 3 reflected, or stations, nodes and retransmits them to the rest of the network 1.23E+010 accepts wireless signals from multiple 4 satellite down 1.23E+010 depends on an 5 fading 1.23E+010 issues and receives wireless signals with ad hocstrength and clarity in all directions 6 equal wirele network 1.23E+010 APs work as peer devices on the same 7 infrastructur 1.23E+010 directional an 8 wireless acce 1.23E+010 omnidirection 9 wireless mes 1.23E+010 directional antenna, issues wireless signals alongnode direction 10 hidden a single ...
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